Endoscopic appearance of targeted ablation of the entire esophageal circumference for Barrett's esophagus at the top of the gastric folds using the Barrx90 system

(A, B) High-resolution white light inspection of the gastroesophageal junction after primary circumferential ablation. Differentiating Barrett's mucosa from cardia mucosa can be difficult.
(C) Corresponding image with narrow band imaging (NBI).
(D) To ensure eradication of all intestinal metaplasia at the top of the gastric folds, the entire circumference is ablated using the Barrx90 system (3×12 J/cm², no cleaning). After ablation, whitish coagulum can be seen.
(E) Complete eradication apart from one tiny island at 1 o'clock, which was coagulated using argon plasma coagulation.
(F) Neosquamocolumnar junction after ablation with NBI.